Draft-rigging attachment



G-4 C. MURRAY. DRAFT RIGGING ATTACHMENT.

APPLICATION FILED DEC.3, 1915.

1,348,141, I Patented July 27,1920.

3 SHEETS-SHEET lo ye Cwrray M1226 G. C. MURRAY. DRAFT RTGGING ATTACHMENT.

APPLICATION FILED 050.3. I915.

1,348,141. P tent d J ly 27, 1920.

3 SHEETS-SHEET 2- 4,\lA n Cfjfavw G. C. MURRAY.

DRAFT RIGGING ATTACHMENT.

APPLICATION FILED DEC-3.1915.

1,348, 141 Patented July 27, 1920.

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.iL inoIs, nssxonon T KEYOKE RAILWAY EQUIr- MERE! COMPANY, or. CHICAGQILLINOIS, AcoRPoRAmoN or DELAwAnn T nmrr-mssmqiar'racnmnnr. j

To all whom mayconcera: Be it known that I, GEORGE Chicago, in the county of Cook and State of Illinois, have invented certain newand, useful Improvements in Draft Rigging Attachments, of which the following is a specification. v is w a This invention relates to improvements in draft rigging attachments, and has for its chief object to provide a device'which may be used in conjunction with some forms of 7 It has been found, especially in connection with the use 'of a draft rigging utilizing a key passing draft rigging now'in use.-

through an aperture inthe butt of a coupler and operably attached to links or the like, which in turn transmit draft strains to rear followers or their equivalent and from thence to the draft riggin'gthatthe aperture in the coupler. butt, especially where hollowca'st couplers are used,- becomes elongated from wear so that play or free movement of the coupler is permitted under draft strains. This-is annoying in service, not only on accountef'the resultant jerks, but in vievi of the fact that it is impossible to keep the car platforms close together. -H'itherto the "only means of compensating for this wear has been to pour molten metal into the key aperture, or in some similar way,

such as. the provision of a bushing or the like, to eliminate the play. The make-shift repairsrequire con iderable time andtrouble 'as'well as skill, andresult in laying up the cars for some time dnri'n he repair thereof, which is inconsistent wilih efficient manage- My device rov'ides a simple ami inexpensi've K163118701; compensating for this Wear, the coupler but-t being provided whth' aln atfi'ts around and is engaged by the shoulder of the butt, and, which closely fits and engages the key. have described several forms of my invention in'the l ollowing speei'ficat'ifomand have illustrated the same in the accompanying whifch, Figure 1 is a plan View partially'in section o'fone form er my invention; 2' a side elevation of the same;

Fig.3 is a transverse vertical section of the same how-ing' th'e key in elevation;

Fig. 4 is a detail stone of the securing members;

drawing Specification of Letters Patent.

C. Mnnnar, -a citizen of the United States, residing at ward movement of Patented July 27,1920.

-Appllcution filed- December a, 1915. Serial m. 64,872. V

1 Fig. 5 is a perspective of the coupler butt; n Fig. 6 1s aperspective ofthe complementary attaching member;

the same;

Fig. 9 is a vertical longitudinalsection similar to that ofFig. 7 of still another form of my invention; 1 v i Fig. 10. is a transverse vertical section taken along the line 10+10 of Fig. 9; and

Fig. 11 is a perspective of the locking block shown in Figs. 9-and =10." 7

Like. numerals. refer to like elements throughout the drawin s, in which 15 designatesgenerally thedra {sills tied by means of cross-ties 16, as shown in Fig. 3 for example. In the illustration of my invention I have shown the same applied to and utilized in combination with one form of draft gear, although I wish it understood that there are other forms o'f'd'ra'ft gear requiring the use of my invention, or an equivalent, other than the type shown, and I do not wish to'be restricted as confining myself to the combination of my'device with the specific form illustrated; The draft gear illus trated in the drawings comprises among other elements the links 'orarms18, located one at each side of the draft rigging (see Figs. 1 and '3) these links being operatively attached at their rearward extremities to the rear followers, orfthe like, it being understood that'the draft stresses willbe transm'itted-through these links or arms to the movement-resisting means in Whatever form it may be utilized, whether springs, wedges,

or the like,.these features forming no part 0f my present invention.

coupler 19 is-provided with the butt 19*,hav-in the shoulder 19* in' the form shown, an generally in practice a hollow cast coupleris utilized, the "same being profvide'd with the transverse keyway, or 'aper-- ture 19, through which extends the key 20, the latter having itsextremiti'es projecting a considerable distance on "either side of the coupler butt,

as in the form shown. Suitable slots, or apertures, 21 are provided in the draft sills 15, to-perm-it forward and backthe key 20, as shown in Fig. 1. A second key 22 passes through suitableapertur'es 23 in the draft sills 15,"

and is utilized to serve the whole of the draft rig ing and draft movement of the rigging,

an to act as a means for transmitting buffing stresses directly from the coupler 19. The llIlkS 18 are apertured at18, to permit their movement forwardly under draft strains independently of the key 22, the latter moving with such arms 18 under bufling stresses or shocks. After continued use, it generally happens that the keyways, or apertures, 19 become elongated, owing to wear, as shown in Fig. -1,and 1n dotted lines 1n Fig. 2. This is especially true of the hollow cast coupler butt, owing to the comparatively small bearing surface for the transverse key 20. It is obvious that with an elongated keyway 19, as illustrated, a

coupler, or coupler butt, will normally be permitted to move 1' forwardly some distance under draft strains before picking up the key 20, with the consequent disadvantages mentioned in the preamble hereto. To prevent this, I have provided a looking 'or se-' curing device comprising the two members.

25 and 26, shown in perspective in Figs.,4

and 6. The member '25, for example,is provided at the sides, or wings, 25 withsuitable key apertures 25", and connected by the -cross-strap25. The complementary member 26 is in general similarly formed, and is provided with side wings 26*, key apertures 26", and a cross-strap 26. When in assembled relation the wings 25* of the member 25 lie over, or overlap, the wings 26*,

the apertures 25 alining with the apertures 26", and with the keyway 19, so'as to permit passage of the key 20 through all the apertures, as shown in Fig. 3, for example. The securing device portions 25 and 26 are engageable by the shoulders 19 of the coupler butt19, as clearly shown in dotted lines in Fig. 2. Of course, the apertures 25"26" are of such size as to closely fit around the key 20, which also serves to lock them in assembled relation. I

(It will be apparent that withthe structure described, if thekeyway 19 be consid-' form of my device in which the securing member 30 is cast integral with and consists of the side wings 30 connected bythe crossstrap 30", and provided with a suitable key- Way aperture 30. These side wings-3O ex tend downwardly along thefibutt of the coupler and-are provided with a second pair of key apertures 30, through which passes a second key 31, the location of these apertures and the second key being suchthat the flatter will engage the lower shoulder of the coupler butt 19 when in assembled relation.

:What I claim is In Figs. 9 to 11 I have shown still another modification in which the securing member .35 is formed with the side wings 35 having the key apertures 35 therethrough, and cross-strap 35 arranged for engagement shoulders. (See Fig. 9.) A second. crossstrap 35 extends between the' wings 35 atthe' bottom-thereof, and below the coupler butt 19, so as to permit slipping of the With the upper end of the coupler butt securlng member 35-feasilyover the coupler butt 19 when assembling the same. To secure the member 35 in operative position,

a locking or key-block 36 is utilized, the

same being provided with the shoulders 36 and .36 for engagement respectively by the lower shoulder of the coupler butt 19 and the cross-strap 35,as shown inFig. 9. The

operation'of these modifications is substantially the same asthat of the form described first. Itis obvious that my invention is capable of a'number ofv modifications, and

for usewith a number of different draft rig- :gings, and I'do not Wish to be restricted to beyond the:

the form shown and described scope of the appended claims.

1. In combination, gmeans to transmit stresses to a draft rigging'or the like comprising yoke-acting mechanism, an apertured coupler butt, a draft-transmitting key extending therethrough, and means coactin'g with said coupler butt and key to transfer draft stresses from the former to the latter.

2. In combination, means to transmit stresses to. a draft rigging or the like comprising yoke-acting mechanism, an apertured coupler butt, a draft-transmitting key extending therethrough, and means coact- I ing with said coupler butt and key to transfer draft stresses from the former to the latter, said means being detachably secured to said coupler butt.

' 3. In combination, means to transmit.

stresses to a draft rigging or thelike com prising yoke-acting mechanism, anapertured coupler butt, a draft-transmitting key extending therethrough, means coacting with said coupler butt andkey to transfer draft stresses from the formerto the latter, said means-being detachably secured to sald couplerbutt,and apertured to embrace said key 1 member.

I 4. In combination, means "transmit stresses to a draft rigging or the likecom prising, yoke-act ng mechanism, an. apertured coupler butt, a draft-transmitting key extending therethrough, and means coacting with said .couplerbutt and key. to transfer draft stresses from the former to the latter,

said last-named means comprising .a member partially surrounding said coupler butt, said coupler butt being provided with a shoulder in engagement under draft movement with said member,

5. 'In- Combination, an apertured coupler ders of said coupler butt during draft movebutt, said butt being provided with a shoulment thereof.

der, a key member passing through the aper- 8. In combination, means to transmit 25 ture therein, a securing member engaging stresses-to a draft rigging or the like comsaid key, said member being provided with prising an apertured coupler butt, a draftmeans engageable by the shoulder of saidtransmitting key extendlng therethrough, coupler butt during movement thereof. and means coacting with said coupler butt 6. In combination, an apertured coupler and key to transfer draft stresses from the 30 butt, said butt being provided with ai'shoulformer to the latter, said means being deder, a key member passing through the apertachably secured to said coupler butt by ture therein, a securing member engaging said key. 1

said key,'said member being provided with 9. In combination, means to transmit a cross-strap engageable by the shoulder of stresses to a draft rigging comprising an 35 said coupler butt. apertured coupler butt and apertured link 7. In combination, an apertured shoulmembers, a draft key extending throug dered coupler butt, a key member passing said coupler butt and link members, an through the aperture therein, .means coactmeans coacting with said coupler butt and ing with said coupler butt and key to trans: key to transfer draft stresses from the 40 mit draft stresses from the one to the other, former to the latter. said means comprising members having In testimony whereof I have subscribed overlapping shoulders engaging said key, my name. p and cross-straps engageable by the shoul GEORGE C. MURRAY. 

